Improvement in portable cooking-furnaces



1. D. KELLOGGJV.

Cooking Furnace.4 No. 93,538. Patented Aug. 10, 1869.

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l nitdtatwgatwt @infine l J. DWIGHT KELLOGG, JR., or NQRTHAMPTON, MASSACHUSETTS. i

IMPRO-VEMENT IN l:PORTABLE COOKING-FURNACES- The Schedule referred to in these Letters Patent 'and making. of the same.

To cli whom it muy concern.

Be it known that I, J. DWIGHT KnLLoeG, Jr., of Northampton, in the county of Hampshire, and State of' Massachusetts, have invented a new andimproved Combination-Furnace; and I do hereby declare that the following is a full, clear, and exact description of' the construction and operation of thesame, reference being had to the accompanying drawings, makinga part of this specification, in which- Fig'ure 1 is a vertical section.

Figure 2 is a horizont-al section. This invention is intended to serve as a substitute for the ordinary cooking-Stove in warm weather, being adapted for use either in doors or out of doors, and costing little, either to manufacture or operate, as the heatis economized toa degree that renders .an nnusually small amount ofl fuel necessary; and

The invention consists /in .a fire-pot, provided with no outlet for smoke except at the top, Set within an enclosing cylinder, the space between which and the fire-pot serves as a flue for the escape of' the Smoke from the latter', said enclosing cylinder being open at the bottoni, and being vset upon a` hollow pedestal, which conducts the smoke received from the cylinder into the open air or into the damper of an ordinary stove, when the furnace is placed upon the latter, for

use within the huse.

A is au ordinary sheet-metal cylinder, made of' any required size, having a removable cover fitting closely in its top, which' cover yhas a removable central circular part, also fitting closely.

Within the cylinder A is a fire-pot, c, slightly tapering downward, and having ears at its top by which it may be fastened at the upper end of the cylinder' A. 'The fire-pot has a collar, a', projecting outward around its top, and wide -cnough to reach the innerV the admission of air.

There is a circular opening, b, in the bottom ofthe cylinder A, which opening has a collar, b', extending downward, and fitting vinto an opening, c', in the top of .the pedestal c, in which the cylinder. is set. "lhe pedestal is open at the bottom and at the rear end.

The cylinder' A is provided with a bail, by which it may be conveniently handled.

Fuel heilig placed in the re-pot and ignited, the smoke and gasesascend.

y The vessel containing the article to be cooked is placed either directly on the top ofthe enclosing cylinder, the cover .being removedfor on the cover, its central part being taken away. rlhe heat, smoke, and gases are distributed equally over the whole exposed sulface of the cooking-vessel, and then pass through the orifices in the collar a/and down through the annular Space betweenthe'ylinder and fire-pOt-,where they warm theformer and cause it to give out calorie for heating-purposes, and thence -into the hollow pedestal, through the' open real" end of' which they finally escape, either in'to the open air or into the damper of an ordinary stove, if the furnace be placed upon ,the latter.

The heat heilig lall compelled to passdn contact with the surface of the cooking-vessel before escaping, is most economically used, so much. so. that a given amount of' fuel Vin'this furnace will do as much cooking as thrice the quantity in the common stove. Moreover, fuel of' an inferior-quality, such as chips, Ste., can be used to good advantage in my apparatus.

'lhe conibinationwfnrnace is very cheaply manufactured, and forms an' exceedingly' desirable larticle of' householdecomomyl Haidng thus described my invention,

\Vhat I claim as new, and desire to secure by Letters Patent, is

' AThe combination of the cylinder A, fire-pot a., and` pedestal c, as and for the purpose specified.

' J. DWIGHT KEILOGG, J n.

iVitnesses: i

. FREDERICK W. LYMAN,

J E. RILEY. 

